pam_unix: Document that MD5 password hash is used to store old passwords.

[linux-pam] / zanata.xml

<?xml version="1.0" encoding="UTF-8" standalone="yes"?>
<config xmlns="http://zanata.org/namespace/config/">
  <url>https://fedora.zanata.org/</url>
  <project>linux-pam</project>
  <project-version>master</project-version>
  <project-type>gettext</project-type>
</config>